(PhysOrg.com) -- The hottest stars in the universe spin so fast that they get a bit squished at their poles and dimmer around their middle. The 90-year-old theory that predicts the extent of this "gravity darkening" phenomenon ...
Astronomy
Apr 18, 2011
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When we look outward into space, we're looking backward in time. That's because light moves at the speed of light. It takes time for the light to reach us.
Astronomy
Aug 7, 2019
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Four stars in the night sky have been formally recognised by their Australian Aboriginal names.
Astronomy
Jan 15, 2018
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A bright nova has recently been discovered in the constellation of Delphinus (The Dolphin). The discoverer was Koichi Itagaki, in Japan who used an 18 cm reflecting telescope with a CCD camera. The nova was confirmed late ...
Astronomy
Aug 23, 2013
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The ability to have access to the Internet or use a mobile phone anywhere in the world is taken more and more for granted, but the brightness of Internet and telecommunications satellites that enable global communications ...
Space Exploration
Oct 8, 2023
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(Phys.org) —The nearby star system Fomalhaut – of special interest for its unusual exoplanet and dusty debris disk – has been discovered to be not just a double star, as astronomers had thought, but one of the widest ...
Astronomy
Oct 3, 2013
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Here's a feat of visual athletics to amaze your friends with this week. During your daily routine, you may have noticed the daytime Moon hanging against the azure blue sky. But did you know that, with careful practice and ...
Space Exploration
Dec 5, 2013
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A NASA sounding rocket will observe a nearby star to learn how starlight affects the atmospheres of exoplanets—key information in the hunt for life outside our solar system.
Astronomy
Nov 5, 2021
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One of the first known stars to host an extrasolar planet, was that of 55 Cancri. The first planet in this system was reported in 1997 and today the system is known to host at least five planets, the inner most of which, ...
Astronomy
May 2, 2011
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Vega, a star astronomers have used as a touchstone to measure other stars' brightness for thousands of years, may be more than 200 million years older than previously thought. That's according to new findings from the University ...
Astronomy
Dec 11, 2012
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